WorksheetsDNA - Formative
Total questions: 15
Worksheet time: 24mins
Which differences make your DNA unique and identifiable from everyone and everything else’s?
The shape of the DNA molecule
The color of nucleotides
The order of the nucleotides
All of the above
What is the purpose of PCR?
Create many copies of DNA fragments
Create a DNA fingerprint
Remove DNA from a sample
Cut the DNA into smaller pieces
Which suspect should be charged with the crime?
Suspect 1
Suspect 2
Suspect 3
None of these suspects
DNA profiling works because
Most genes are dominant
All organisms contain RNA
The most important genes are different among most people
No two people, except identical twins, have exactly the same DNA
What is the scientific name for the physical structure of DNA?
Spiral Staircase
Twisted Ladder
Double Helix
Circular
Short sequences of nucleotides that are repeated many times, and are used to study differences between individuals are called
codons
RFLPs
STRs
CODIS
Which sequence of DNA bases would pair with this partial strand
AGCTCGAT
AGCTCGAT
TCGAGCTA
TAGCTCGA
CGTAGTCA
Investigator's run unknown DNA profiles through _________ in order to hopefully find a match to a known person's DNA profile.
AFIS
BBQ
CODIS
PDQ
STR analysis requires a larger sample of DNA than RFLP.
True
False
Which suspect's DNA matches the crime scene DNA? HOW can you tell?
The previous samples matched at FOUR loci -- what is the probability the crime scene DNA could match to someone OTHER than Suspect 3?
1 in 10
1 in 100
1 in 1,000
1 in 10,000
To be fully confident Suspect 3 matches the DNA sample from the crime scene, what should investigators do? (hint: we said we've only checked FOUR loci so far...)
Using the provided table, which suspect can you ELIMINATE from your investigation?
Suspect 1
Suspect 2
Suspect 3
Suspect 4
